OIL AND GAS PRODUCTION, OIL AND GAS REFINING; OIL WELL FRACTURING, OIL WELL PROSPECTING, NAMELY, PERFORATION AND SPILL TREATMENT

'fractur':11 'gas':3,7 'name':15 'oil':1,5,9,12 'perfor':16 'product':4 'prospect':14 'refin':8 'spill':18 'treatment':19 'well':10,13

OIL WELL DRILLING, OIL WELL CASING, TUBING AND DRILL PIPE INSTALLATION, OIL WELL BORING, DRILLING AND PUMPING OF OIL

'bore':14 'case':6 'drill':3,9,15 'instal':11 'oil':1,4,12,19 'pipe':10 'pump':17 'tube':7 'well':2,5,13

OIL WELL TESTING, ANALYSIS OF OIL FIELDS AND OIL SOAKINGS, OIL EXPLORATION, OIL FIELD SURVEYING

'analysi':4 'explor':12 'field':7,14 'oil':1,6,9,11,13 'soak':10 'survey':15 'test':3 'well':2

ME

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